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OCR Rendition - approximate

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PLATE I i.

Fir,. 17.
ORIGIN OF SUPPLY OF RIDGES TO PATTERNS OF PRINTS OF RIGHT HAND.

Of the two letters in the left upper corner of each compartment, the first refers to the source of upper boundary of the pattern, the second to the lower boundary. For patterns on the prints of left hands; li and 0c must be interchanged.

 

Asec,Ilss

RINos

DUPLEX SPIRALS

from both sides

from neither side

from both sides

I and 0 both absent.

I and 0 both present

upper supply

from

I side

D side

jj

   

of

io

SPIRALS

LOOPS

SPIRALS

from I side,

from I side

from 0 side

from 0 side

above

below

I absent

0 absent

above

below

of

jo

     

ji

Fm. 18.
Ambiguities in prints of the Minutiae.

r

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